gnutls: gnutls: Certificate validation bypass due to improper handling of URI and SRV SANs

A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted certificate that contains Uniform Resource Identifier URI or Service SRV Subject Alternative Names SANs. This could cause the certificate validation process to incorrectly fall back to...

gnutls: gnutls: Certificate validation bypass due to oversized Subject Alternative Name

A flaw was found in gnutls. When validating certificates, an oversized Subject Alternative Name SAN could cause the validation process to incorrectly fall back to checking the Common Name CN field. This could allow a remote attacker to bypass proper certificate validation, potentially leading to...

gnutls: gnutls: Security bypass due to incorrect name constraint handling

A flaw was found in gnutls. This vulnerability occurs because permitted name constraints were incorrectly ignored when previous Certificate Authorities CAs only had excluded name constraints. A remote attacker could exploit this to bypass critical name constraint checks during certificate...

Important: Red Hat Security Advisory: gnutls security update

An update for gnutls is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

CVE-2026-56624: Improper Certificate Validation

Improper certificate validation in Apache MINA SSHD server-side. Apache MINA SSHD is a Java library for client-side and server-side SSH. Server-side OpenSSH user certificate validation during user authentication in an Apache MINA SSHD server did not check for the unsupported force-command or...

ALSA-2026:41947 Important: nodejs:22 security, bug fix, and enhancement update

Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language. Security Fixes: ip-address: ip-address: Cross-site scripting via improper HTML escaping of untrusted input CVE-2026-42338 undici: undici: Denial of Service due to...

PT-2026-61539

Name of the Vulnerable Software and Affected Versions Konnectivity proxy-server affected versions not specified Description A flaw in the configuration of the proxy-server for hosted control planes allows the agent-facing listener to start without the --cluster-ca-cert flag and without token-base...

CVE-2026-46428: Improper Certificate Validation

lettre is a a mailer library for Rust. Starting in version 0.10.1 and prior to version 0.11.22, an inverted-boolean bug in lettre's boring-tls integration silently disables TLS hostname verification for callers using the default strict configuration. An on-path attacker presenting any chain-valid...

TencentOS Server 3: container-tools:rhel8 (TSSA-2026:0671)

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2026:0671 advisory. Package updates are available for TencentOS Server 3 that fix the following vulnerabilities...

PT-2026-61720

Name of the Vulnerable Software and Affected Versions Apache MINA SSHD versions prior to 2.19.0 Apache MINA SSHD versions prior to 3.0.0-M5 Description Improper certificate validation occurs during server-side OpenSSH user authentication. The server fails to check or validate the force-command or...

The vulnerability of Windows operating system’s Cryptographic Services allows attackers to circumvent security restrictions.

The vulnerability of Windows operating system’s Cryptographic Services is related to errors in the certificate validation process. Exploiting this vulnerability allows a malicious actor to bypass security restrictions remotely...

RHEL 9 : gnutls (RHSA-2026:41921)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:41921 advisory. The gnutls packages provide the GNU Transport Layer Security GnuTLS library, which implements cryptographic algorithms and protocols such a...

Improper Certificate Validation

Overview Affected versions of this package are vulnerable to Improper Certificate Validation due to insecure default behavior in the idpcertfingerprintvalidator. An attacker can bypass certificate validation by providing any certificate fingerprint, which will be accepted as valid. Remediation...

Improper Certificate Validation

kuma-dp is vulnerable to Improper Certificate Validation. The vulnerability is due to TLS peer verification being disabled when no CA certificate is provided for an HTTPS control plane, which allows an attacker to perform a man-in-the-middle attack and intercept the dataplane authentication token...

Improper Certificate Validation

kumactl is vulnerable to Improper Certificate Validation. The vulnerability is due to TLS certificate verification being disabled when an HTTPS control plane profile is configured without a CA certificate, which allows an attacker to perform a man-in-the-middle attack and intercept API tokens...

CVE-2026-13410: Improper Certificate Validation

Dancer::Plugin::Auth::Google versions before 0.08 for Perl have TLS verification disabled. The default user agent is initialised with SSLverifymode explicitly disabled. An attacker with network man-in-the-middle MITM capability between the Dancer application and googleapis.com can intercept the...

crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation

A flaw was found in Go's crypto/x509 package. A remote attacker could exploit this by presenting a specially crafted certificate chain containing a large number of policy mappings. This inefficient validation process consumes excessive resources, which can lead to a denial of service DoS for...

crypto/x509: Incorrect enforcement of email constraints in crypto/x509

A certificate validation flaw has been discovered in the golang crypto/x509 module. When verifying a certificate chain which contains a certificate containing multiple email address constraints which share common local portions but different domain portions, these constraints will not be properly...

Improper Validation of Certificate with Host Mismatch

Overview snowflake-connector-python is a Snowflake Connector for Python Affected versions of this package are vulnerable to Improper Validation of Certificate with Host Mismatch in the TLS certificate verification process. An attacker can intercept sensitive data, tamper with queries, or execute...

CVE-2026-15925 Improper TLS Hostname Verification in Snowflake Connector for Python

Improper TLS hostname verification in Snowflake Connector for Python versions prior to 4.7.1 and 3.18.1 may have allowed a network-positioned attacker to bypass certificate hostname validation on HTTPS connections made by the connector. An attacker with on-path network access could exploit this b...